TY  - JOUR
AU  - M. M. Gekhtman
TI  - Spectrum of some nonclassical self-adjoint extensions of the Laplace operator
JO  - Funkcionalʹnyj analiz i ego priloženiâ
PY  - 1970
SP  - 72
VL  - 4
IS  - 4
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/FAA_1970_4_4_a8/
LA  - ru
ID  - FAA_1970_4_4_a8
ER  -